Release 4.11 drivers/media/usb/pvrusb2/pvrusb2-v4l2.c

/*
 *
 *
 *  Copyright (C) 2005 Mike Isely <isely@pobox.com>
 *  Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 */

#include <linux/kernel.h>
#include <linux/slab.h>
#include "pvrusb2-context.h"
#include "pvrusb2-hdw.h"
#include "pvrusb2.h"
#include "pvrusb2-debug.h"
#include "pvrusb2-v4l2.h"
#include "pvrusb2-ioread.h"
#include <linux/videodev2.h>
#include <linux/module.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-device.h>
#include <media/v4l2-fh.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>

struct pvr2_v4l2_dev;
struct pvr2_v4l2_fh;
struct pvr2_v4l2;


struct pvr2_v4l2_dev {
	
struct video_device devbase; /* MUST be first! */
	
struct pvr2_v4l2 *v4lp;
	
struct pvr2_context_stream *stream;
	/* Information about this device: */
	
enum pvr2_config config; /* Expected stream format */
	
int v4l_type; /* V4L defined type for this device node */
	
enum pvr2_v4l_type minor_type; /* pvr2-understood minor device type */
};


struct pvr2_v4l2_fh {
	
struct v4l2_fh fh;
	
struct pvr2_channel channel;
	
struct pvr2_v4l2_dev *pdi;
	
struct pvr2_ioread *rhp;
	
struct file *file;
	
wait_queue_head_t wait_data;
	
int fw_mode_flag;
	/* Map contiguous ordinal value to input id */
	
unsigned char *input_map;
	
unsigned int input_cnt;
};


struct pvr2_v4l2 {
	
struct pvr2_channel channel;

	/* streams - Note that these must be separately, individually,
         * allocated pointers.  This is because the v4l core is going to
         * manage their deletion - separately, individually...  */
	
struct pvr2_v4l2_dev *dev_video;
	
struct pvr2_v4l2_dev *dev_radio;
};


static int video_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1};
module_param_array(video_nr, int, NULL, 0444);
MODULE_PARM_DESC(video_nr, "Offset for device's video dev minor");

static int radio_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1};
module_param_array(radio_nr, int, NULL, 0444);
MODULE_PARM_DESC(radio_nr, "Offset for device's radio dev minor");

static int vbi_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1};
module_param_array(vbi_nr, int, NULL, 0444);
MODULE_PARM_DESC(vbi_nr, "Offset for device's vbi dev minor");


static struct v4l2_fmtdesc pvr_fmtdesc [] = {
	{
		.index          = 0,
		.type           = V4L2_BUF_TYPE_VIDEO_CAPTURE,
		.flags          = V4L2_FMT_FLAG_COMPRESSED,
		.description    = "MPEG1/2",
		// This should really be V4L2_PIX_FMT_MPEG, but xawtv
		// breaks when I do that.
		.pixelformat    = 0, // V4L2_PIX_FMT_MPEG,
	}
};


#define PVR_FORMAT_PIX  0

#define PVR_FORMAT_VBI  1


static struct v4l2_format pvr_format [] = {
	[PVR_FORMAT_PIX] = {
		.type   = V4L2_BUF_TYPE_VIDEO_CAPTURE,
		.fmt    = {
			.pix        = {
				.width          = 720,
				.height             = 576,
				// This should really be V4L2_PIX_FMT_MPEG,
				// but xawtv breaks when I do that.
				.pixelformat    = 0, // V4L2_PIX_FMT_MPEG,
				.field          = V4L2_FIELD_INTERLACED,
				.bytesperline   = 0,  // doesn't make sense
						      // here
				//FIXME : Don't know what to put here...
				.sizeimage          = (32*1024),
				.colorspace     = 0, // doesn't make sense here
				.priv           = 0
			}
		}
	},
	[PVR_FORMAT_VBI] = {
		.type   = V4L2_BUF_TYPE_VBI_CAPTURE,
		.fmt    = {
			.vbi        = {
				.sampling_rate = 27000000,
				.offset = 248,
				.samples_per_line = 1443,
				.sample_format = V4L2_PIX_FMT_GREY,
				.start = { 0, 0 },
				.count = { 0, 0 },
				.flags = 0,
                        }
		}
	}
};



/*
 * This is part of Video 4 Linux API. These procedures handle ioctl() calls.
 */


static int pvr2_querycap(struct file *file, void *priv, struct v4l2_capability *cap)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;

	strlcpy(cap->driver, "pvrusb2", sizeof(cap->driver));
	strlcpy(cap->bus_info, pvr2_hdw_get_bus_info(hdw),
			sizeof(cap->bus_info));
	strlcpy(cap->card, pvr2_hdw_get_desc(hdw), sizeof(cap->card));
	cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER |
			    V4L2_CAP_AUDIO | V4L2_CAP_RADIO |
			    V4L2_CAP_READWRITE | V4L2_CAP_DEVICE_CAPS;
	switch (fh->pdi->devbase.vfl_type) {
	case VFL_TYPE_GRABBER:
		cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_AUDIO;
		break;
	case VFL_TYPE_RADIO:
		cap->device_caps = V4L2_CAP_RADIO;
		break;
	}
	cap->device_caps |= V4L2_CAP_TUNER | V4L2_CAP_READWRITE;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
82
52.23%
3
60.00%
Hans Verkuil
75
47.77%
2
40.00%
Total
157
100.00%
5
100.00%



static int pvr2_g_std(struct file *file, void *priv, v4l2_std_id *std)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	int val = 0;
	int ret;

	ret = pvr2_ctrl_get_value(
			pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDCUR), &val);
	*std = val;
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hans Verkuil
38
52.78%
1
33.33%
Mike Isely
33
45.83%
1
33.33%
Mauro Carvalho Chehab
1
1.39%
1
33.33%
Total
72
100.00%
3
100.00%



static int pvr2_s_std(struct file *file, void *priv, v4l2_std_id std)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;

	return pvr2_ctrl_set_value(
		pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDCUR), std);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hans Verkuil
40
75.47%
1
33.33%
Mike Isely
12
22.64%
1
33.33%
Mauro Carvalho Chehab
1
1.89%
1
33.33%
Total
53
100.00%
3
100.00%



static int pvr2_querystd(struct file *file, void *priv, v4l2_std_id *std)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	int val = 0;
	int ret;

	ret = pvr2_ctrl_get_value(
		pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_STDDETECT), &val);
	*std = val;
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
72
100.00%
2
100.00%
Total
72
100.00%
2
100.00%



static int pvr2_enum_input(struct file *file, void *priv, struct v4l2_input *vi)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	struct pvr2_ctrl *cptr;
	struct v4l2_input tmp;
	unsigned int cnt;
	int val;

	cptr = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT);

	memset(&tmp, 0, sizeof(tmp));
	tmp.index = vi->index;
	if (vi->index >= fh->input_cnt)
		return -EINVAL;
	val = fh->input_map[vi->index];
	switch (val) {
	case PVR2_CVAL_INPUT_TV:
	case PVR2_CVAL_INPUT_DTV:
	case PVR2_CVAL_INPUT_RADIO:
		tmp.type = V4L2_INPUT_TYPE_TUNER;
		break;
	case PVR2_CVAL_INPUT_SVIDEO:
	case PVR2_CVAL_INPUT_COMPOSITE:
		tmp.type = V4L2_INPUT_TYPE_CAMERA;
		break;
	default:
		return -EINVAL;
	}

	cnt = 0;
	pvr2_ctrl_get_valname(cptr, val,
			tmp.name, sizeof(tmp.name) - 1, &cnt);
	tmp.name[cnt] = 0;

	/* Don't bother with audioset, since this driver currently
           always switches the audio whenever the video is
           switched. */

	/* Handling std is a tougher problem.  It doesn't make
           sense in cases where a device might be multi-standard.
           We could just copy out the current value for the
           standard, but it can change over time.  For now just
           leave it zero. */
	*vi = tmp;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
151
75.88%
4
80.00%
Hans Verkuil
48
24.12%
1
20.00%
Total
199
100.00%
5
100.00%



static int pvr2_g_input(struct file *file, void *priv, unsigned int *i)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	unsigned int idx;
	struct pvr2_ctrl *cptr;
	int val;
	int ret;

	cptr = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT);
	val = 0;
	ret = pvr2_ctrl_get_value(cptr, &val);
	*i = 0;
	for (idx = 0; idx < fh->input_cnt; idx++) {
		if (fh->input_map[idx] == val) {
			*i = idx;
			break;
		}
	}
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
74
59.68%
3
75.00%
Hans Verkuil
50
40.32%
1
25.00%
Total
124
100.00%
4
100.00%



static int pvr2_s_input(struct file *file, void *priv, unsigned int inp)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;

	if (inp >= fh->input_cnt)
		return -EINVAL;
	return pvr2_ctrl_set_value(
			pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT),
			fh->input_map[inp]);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hans Verkuil
42
59.15%
1
25.00%
Mike Isely
29
40.85%
3
75.00%
Total
71
100.00%
4
100.00%



static int pvr2_enumaudio(struct file *file, void *priv, struct v4l2_audio *vin)
{
	/* pkt: FIXME: We are returning one "fake" input here
           which could very well be called "whatever_we_like".
           This is for apps that want to see an audio input
           just to feel comfortable, as well as to test if
           it can do stereo or sth. There is actually no guarantee
           that the actual audio input cannot change behind the app's
           back, but most applications should not mind that either.

           Hopefully, mplayer people will work with us on this (this
           whole mess is to support mplayer pvr://), or Hans will come
           up with a more standard way to say "we have inputs but we
           don 't want you to change them independent of video" which
           will sort this mess.
         */

	if (vin->index > 0)
		return -EINVAL;
	strncpy(vin->name, "PVRUSB2 Audio", 14);
	vin->capability = V4L2_AUDCAP_STEREO;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Pantelis Koukousoulas
30
56.60%
1
33.33%
Hans Verkuil
22
41.51%
1
33.33%
Mike Isely
1
1.89%
1
33.33%
Total
53
100.00%
3
100.00%



static int pvr2_g_audio(struct file *file, void *priv, struct v4l2_audio *vin)
{
	/* pkt: FIXME: see above comment (VIDIOC_ENUMAUDIO) */
	vin->index = 0;
	strncpy(vin->name, "PVRUSB2 Audio", 14);
	vin->capability = V4L2_AUDCAP_STEREO;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Pantelis Koukousoulas
28
59.57%
1
33.33%
Hans Verkuil
18
38.30%
1
33.33%
Mike Isely
1
2.13%
1
33.33%
Total
47
100.00%
3
100.00%



static int pvr2_s_audio(struct file *file, void *priv, const struct v4l2_audio *vout)
{
	if (vout->index)
		return -EINVAL;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hans Verkuil
33
97.06%
2
66.67%
Mike Isely
1
2.94%
1
33.33%
Total
34
100.00%
3
100.00%



static int pvr2_g_tuner(struct file *file, void *priv, struct v4l2_tuner *vt)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;

	if (vt->index != 0)
		return -EINVAL; /* Only answer for the 1st tuner */

	pvr2_hdw_execute_tuner_poll(hdw);
	return pvr2_hdw_get_tuner_status(hdw, vt);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hans Verkuil
41
60.29%
1
20.00%
Mike Isely
18
26.47%
2
40.00%
Mauro Carvalho Chehab
8
11.76%
1
20.00%
Michael Ira Krufky
1
1.47%
1
20.00%
Total
68
100.00%
5
100.00%



static int pvr2_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *vt)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;

	if (vt->index != 0)
		return -EINVAL;

	return pvr2_ctrl_set_value(
			pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_AUDIOMODE),
			vt->audmode);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hans Verkuil
42
60.00%
2
66.67%
Mike Isely
28
40.00%
1
33.33%
Total
70
100.00%
3
100.00%



static int pvr2_s_frequency(struct file *file, void *priv, const struct v4l2_frequency *vf)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	unsigned long fv;
	struct v4l2_tuner vt;
	int cur_input;
	struct pvr2_ctrl *ctrlp;
	int ret;

	ret = pvr2_hdw_get_tuner_status(hdw, &vt);
	if (ret != 0)
		return ret;
	ctrlp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT);
	ret = pvr2_ctrl_get_value(ctrlp, &cur_input);
	if (ret != 0)
		return ret;
	if (vf->type == V4L2_TUNER_RADIO) {
		if (cur_input != PVR2_CVAL_INPUT_RADIO)
			pvr2_ctrl_set_value(ctrlp, PVR2_CVAL_INPUT_RADIO);
	} else {
		if (cur_input == PVR2_CVAL_INPUT_RADIO)
			pvr2_ctrl_set_value(ctrlp, PVR2_CVAL_INPUT_TV);
	}
	fv = vf->frequency;
	if (vt.capability & V4L2_TUNER_CAP_LOW)
		fv = (fv * 125) / 2;
	else
		fv = fv * 62500;
	return pvr2_ctrl_set_value(
			pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY),fv);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
145
75.52%
3
50.00%
Hans Verkuil
46
23.96%
2
33.33%
Mauro Carvalho Chehab
1
0.52%
1
16.67%
Total
192
100.00%
6
100.00%



static int pvr2_g_frequency(struct file *file, void *priv, struct v4l2_frequency *vf)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	int val = 0;
	int cur_input;
	struct v4l2_tuner vt;
	int ret;

	ret = pvr2_hdw_get_tuner_status(hdw, &vt);
	if (ret != 0)
		return ret;
	ret = pvr2_ctrl_get_value(
			pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_FREQUENCY),
			&val);
	if (ret != 0)
		return ret;
	pvr2_ctrl_get_value(
			pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_INPUT),
			&cur_input);
	if (cur_input == PVR2_CVAL_INPUT_RADIO)
		vf->type = V4L2_TUNER_RADIO;
	else
		vf->type = V4L2_TUNER_ANALOG_TV;
	if (vt.capability & V4L2_TUNER_CAP_LOW)
		val = (val * 2) / 125;
	else
		val /= 62500;
	vf->frequency = val;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
117
71.34%
3
75.00%
Hans Verkuil
47
28.66%
1
25.00%
Total
164
100.00%
4
100.00%



static int pvr2_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *fd)
{
	/* Only one format is supported : mpeg.*/
	if (fd->index != 0)
		return -EINVAL;

	memcpy(fd, pvr_fmtdesc, sizeof(struct v4l2_fmtdesc));
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
28
57.14%
1
50.00%
Hans Verkuil
21
42.86%
1
50.00%
Total
49
100.00%
2
100.00%



static int pvr2_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	int val;

	memcpy(vf, &pvr_format[PVR_FORMAT_PIX], sizeof(struct v4l2_format));
	val = 0;
	pvr2_ctrl_get_value(
			pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES),
			&val);
	vf->fmt.pix.width = val;
	val = 0;
	pvr2_ctrl_get_value(
			pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES),
			&val);
	vf->fmt.pix.height = val;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
81
68.07%
1
50.00%
Hans Verkuil
38
31.93%
1
50.00%
Total
119
100.00%
2
100.00%



static int pvr2_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	int lmin, lmax, ldef;
	struct pvr2_ctrl *hcp, *vcp;
	int h = vf->fmt.pix.height;
	int w = vf->fmt.pix.width;

	hcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES);
	vcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES);

	lmin = pvr2_ctrl_get_min(hcp);
	lmax = pvr2_ctrl_get_max(hcp);
	pvr2_ctrl_get_def(hcp, &ldef);
	if (w == -1)
		w = ldef;
	else if (w < lmin)
		w = lmin;
	else if (w > lmax)
		w = lmax;
	lmin = pvr2_ctrl_get_min(vcp);
	lmax = pvr2_ctrl_get_max(vcp);
	pvr2_ctrl_get_def(vcp, &ldef);
	if (h == -1)
		h = ldef;
	else if (h < lmin)
		h = lmin;
	else if (h > lmax)
		h = lmax;

	memcpy(vf, &pvr_format[PVR_FORMAT_PIX],
			sizeof(struct v4l2_format));
	vf->fmt.pix.width = w;
	vf->fmt.pix.height = h;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
165
66.80%
4
57.14%
Hans Verkuil
46
18.62%
2
28.57%
Pantelis Koukousoulas
36
14.57%
1
14.29%
Total
247
100.00%
7
100.00%



static int pvr2_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	struct pvr2_ctrl *hcp, *vcp;
	int ret = pvr2_try_fmt_vid_cap(file, fh, vf);

	if (ret)
		return ret;
	hcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_HRES);
	vcp = pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_VRES);
	pvr2_ctrl_set_value(hcp, vf->fmt.pix.width);
	pvr2_ctrl_set_value(vcp, vf->fmt.pix.height);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hans Verkuil
86
74.14%
1
33.33%
Mike Isely
30
25.86%
2
66.67%
Total
116
100.00%
3
100.00%



static int pvr2_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	struct pvr2_v4l2_dev *pdi = fh->pdi;
	int ret;

	if (!fh->pdi->stream) {
		/* No stream defined for this node.  This means
                   that we're not currently allowed to stream from
                   this node. */
		return -EPERM;
	}
	ret = pvr2_hdw_set_stream_type(hdw, pdi->config);
	if (ret < 0)
		return ret;
	return pvr2_hdw_set_streaming(hdw, !0);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hans Verkuil
62
63.27%
1
25.00%
Mike Isely
34
34.69%
2
50.00%
Joe Perches
2
2.04%
1
25.00%
Total
98
100.00%
4
100.00%



static int pvr2_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;

	if (!fh->pdi->stream) {
		/* No stream defined for this node.  This means
                   that we're not currently allowed to stream from
                   this node. */
		return -EPERM;
	}
	return pvr2_hdw_set_streaming(hdw, 0);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hans Verkuil
44
67.69%
1
25.00%
Mike Isely
20
30.77%
2
50.00%
Joe Perches
1
1.54%
1
25.00%
Total
65
100.00%
4
100.00%



static int pvr2_queryctrl(struct file *file, void *priv,
		struct v4l2_queryctrl *vc)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	struct pvr2_ctrl *cptr;
	int val;

	if (vc->id & V4L2_CTRL_FLAG_NEXT_CTRL) {
		cptr = pvr2_hdw_get_ctrl_nextv4l(
				hdw, (vc->id & ~V4L2_CTRL_FLAG_NEXT_CTRL));
		if (cptr)
			vc->id = pvr2_ctrl_get_v4lid(cptr);
	} else {
		cptr = pvr2_hdw_get_ctrl_v4l(hdw, vc->id);
	}
	if (!cptr) {
		pvr2_trace(PVR2_TRACE_V4LIOCTL,
				"QUERYCTRL id=0x%x not implemented here",
				vc->id);
		return -EINVAL;
	}

	pvr2_trace(PVR2_TRACE_V4LIOCTL,
			"QUERYCTRL id=0x%x mapping name=%s (%s)",
			vc->id, pvr2_ctrl_get_name(cptr),
			pvr2_ctrl_get_desc(cptr));
	strlcpy(vc->name, pvr2_ctrl_get_desc(cptr), sizeof(vc->name));
	vc->flags = pvr2_ctrl_get_v4lflags(cptr);
	pvr2_ctrl_get_def(cptr, &val);
	vc->default_value = val;
	switch (pvr2_ctrl_get_type(cptr)) {
	case pvr2_ctl_enum:
		vc->type = V4L2_CTRL_TYPE_MENU;
		vc->minimum = 0;
		vc->maximum = pvr2_ctrl_get_cnt(cptr) - 1;
		vc->step = 1;
		break;
	case pvr2_ctl_bool:
		vc->type = V4L2_CTRL_TYPE_BOOLEAN;
		vc->minimum = 0;
		vc->maximum = 1;
		vc->step = 1;
		break;
	case pvr2_ctl_int:
		vc->type = V4L2_CTRL_TYPE_INTEGER;
		vc->minimum = pvr2_ctrl_get_min(cptr);
		vc->maximum = pvr2_ctrl_get_max(cptr);
		vc->step = 1;
		break;
	default:
		pvr2_trace(PVR2_TRACE_V4LIOCTL,
				"QUERYCTRL id=0x%x name=%s not mappable",
				vc->id, pvr2_ctrl_get_name(cptr));
		return -EINVAL;
	}
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
269
85.13%
7
87.50%
Hans Verkuil
47
14.87%
1
12.50%
Total
316
100.00%
8
100.00%



static int pvr2_querymenu(struct file *file, void *priv, struct v4l2_querymenu *vm)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	unsigned int cnt = 0;
	int ret;

	ret = pvr2_ctrl_get_valname(pvr2_hdw_get_ctrl_v4l(hdw, vm->id),
			vm->index,
			vm->name, sizeof(vm->name) - 1,
			&cnt);
	vm->name[cnt] = 0;
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
56
57.73%
1
50.00%
Hans Verkuil
41
42.27%
1
50.00%
Total
97
100.00%
2
100.00%



static int pvr2_g_ctrl(struct file *file, void *priv, struct v4l2_control *vc)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	int val = 0;
	int ret;

	ret = pvr2_ctrl_get_value(pvr2_hdw_get_ctrl_v4l(hdw, vc->id),
			&val);
	vc->value = val;
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hans Verkuil
43
56.58%
1
50.00%
Mike Isely
33
43.42%
1
50.00%
Total
76
100.00%
2
100.00%



static int pvr2_s_ctrl(struct file *file, void *priv, struct v4l2_control *vc)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;

	return pvr2_ctrl_set_value(pvr2_hdw_get_ctrl_v4l(hdw, vc->id),
			vc->value);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hans Verkuil
37
62.71%
1
50.00%
Mike Isely
22
37.29%
1
50.00%
Total
59
100.00%
2
100.00%



static int pvr2_g_ext_ctrls(struct file *file, void *priv,
					struct v4l2_ext_controls *ctls)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	struct v4l2_ext_control *ctrl;
	struct pvr2_ctrl *cptr;
	unsigned int idx;
	int val;
	int ret;

	ret = 0;
	for (idx = 0; idx < ctls->count; idx++) {
		ctrl = ctls->controls + idx;
		cptr = pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id);
		if (cptr) {
			if (ctls->which == V4L2_CTRL_WHICH_DEF_VAL)
				pvr2_ctrl_get_def(cptr, &val);
			else
				ret = pvr2_ctrl_get_value(cptr, &val);
		} else
			ret = -EINVAL;

		if (ret) {
			ctls->error_idx = idx;
			return ret;
		}
		/* Ensure that if read as a 64 bit value, the user
                   will still get a hopefully sane value */
		ctrl->value64 = 0;
		ctrl->value = val;
	}
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
86
50.00%
2
50.00%
Hans Verkuil
45
26.16%
1
25.00%
Ricardo Ribalda Delgado
41
23.84%
1
25.00%
Total
172
100.00%
4
100.00%



static int pvr2_s_ext_ctrls(struct file *file, void *priv,
		struct v4l2_ext_controls *ctls)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	struct v4l2_ext_control *ctrl;
	unsigned int idx;
	int ret;

	/* Default value cannot be changed */
	if (ctls->which == V4L2_CTRL_WHICH_DEF_VAL)
		return -EINVAL;

	ret = 0;
	for (idx = 0; idx < ctls->count; idx++) {
		ctrl = ctls->controls + idx;
		ret = pvr2_ctrl_set_value(
				pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id),
				ctrl->value);
		if (ret) {
			ctls->error_idx = idx;
			return ret;
		}
	}
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
75
56.82%
2
50.00%
Hans Verkuil
44
33.33%
1
25.00%
Ricardo Ribalda Delgado
13
9.85%
1
25.00%
Total
132
100.00%
4
100.00%



static int pvr2_try_ext_ctrls(struct file *file, void *priv,
		struct v4l2_ext_controls *ctls)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	struct v4l2_ext_control *ctrl;
	struct pvr2_ctrl *pctl;
	unsigned int idx;

	/* For the moment just validate that the requested control
           actually exists. */
	for (idx = 0; idx < ctls->count; idx++) {
		ctrl = ctls->controls + idx;
		pctl = pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id);
		if (!pctl) {
			ctls->error_idx = idx;
			return -EINVAL;
		}
	}
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
70
61.95%
1
50.00%
Hans Verkuil
43
38.05%
1
50.00%
Total
113
100.00%
2
100.00%



static int pvr2_cropcap(struct file *file, void *priv, struct v4l2_cropcap *cap)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	int ret;

	if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
		return -EINVAL;
	ret = pvr2_hdw_get_cropcap(hdw, cap);
	cap->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; /* paranoia */
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hans Verkuil
43
56.58%
1
50.00%
Mike Isely
33
43.42%
1
50.00%
Total
76
100.00%
2
100.00%



static int pvr2_g_selection(struct file *file, void *priv,
			    struct v4l2_selection *sel)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	struct v4l2_cropcap cap;
	int val = 0;
	int ret;

	if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
		return -EINVAL;

	cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;

	switch (sel->target) {
	case V4L2_SEL_TGT_CROP:
		ret = pvr2_ctrl_get_value(
			  pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL), &val);
		if (ret != 0)
			return -EINVAL;
		sel->r.left = val;
		ret = pvr2_ctrl_get_value(
			  pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT), &val);
		if (ret != 0)
			return -EINVAL;
		sel->r.top = val;
		ret = pvr2_ctrl_get_value(
			  pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW), &val);
		if (ret != 0)
			return -EINVAL;
		sel->r.width = val;
		ret = pvr2_ctrl_get_value(
			  pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH), &val);
		if (ret != 0)
			return -EINVAL;
		sel->r.height = val;
		break;
	case V4L2_SEL_TGT_CROP_DEFAULT:
		ret = pvr2_hdw_get_cropcap(hdw, &cap);
		sel->r = cap.defrect;
		break;
	case V4L2_SEL_TGT_CROP_BOUNDS:
		ret = pvr2_hdw_get_cropcap(hdw, &cap);
		sel->r = cap.bounds;
		break;
	default:
		return -EINVAL;
	}
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
135
50.37%
1
33.33%
Hans Verkuil
133
49.63%
2
66.67%
Total
268
100.00%
3
100.00%



static int pvr2_s_selection(struct file *file, void *priv,
			    struct v4l2_selection *sel)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	int ret;

	if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
	    sel->target != V4L2_SEL_TGT_CROP)
		return -EINVAL;
	ret = pvr2_ctrl_set_value(
			pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPL),
			sel->r.left);
	if (ret != 0)
		return -EINVAL;
	ret = pvr2_ctrl_set_value(
			pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPT),
			sel->r.top);
	if (ret != 0)
		return -EINVAL;
	ret = pvr2_ctrl_set_value(
			pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPW),
			sel->r.width);
	if (ret != 0)
		return -EINVAL;
	ret = pvr2_ctrl_set_value(
			pvr2_hdw_get_ctrl_by_id(hdw, PVR2_CID_CROPH),
			sel->r.height);
	if (ret != 0)
		return -EINVAL;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
110
61.80%
1
33.33%
Hans Verkuil
68
38.20%
2
66.67%
Total
178
100.00%
3
100.00%



static int pvr2_log_status(struct file *file, void *priv)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;

	pvr2_hdw_trigger_module_log(hdw);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Hans Verkuil
37
82.22%
1
50.00%
Mike Isely
8
17.78%
1
50.00%
Total
45
100.00%
2
100.00%


static const struct v4l2_ioctl_ops pvr2_ioctl_ops = {
	.vidioc_querycap		    = pvr2_querycap,
	.vidioc_s_audio			    = pvr2_s_audio,
	.vidioc_g_audio			    = pvr2_g_audio,
	.vidioc_enumaudio		    = pvr2_enumaudio,
	.vidioc_enum_input		    = pvr2_enum_input,
	.vidioc_cropcap			    = pvr2_cropcap,
	.vidioc_s_selection		    = pvr2_s_selection,
	.vidioc_g_selection		    = pvr2_g_selection,
	.vidioc_g_input			    = pvr2_g_input,
	.vidioc_s_input			    = pvr2_s_input,
	.vidioc_g_frequency		    = pvr2_g_frequency,
	.vidioc_s_frequency		    = pvr2_s_frequency,
	.vidioc_s_tuner			    = pvr2_s_tuner,
	.vidioc_g_tuner			    = pvr2_g_tuner,
	.vidioc_g_std			    = pvr2_g_std,
	.vidioc_s_std			    = pvr2_s_std,
	.vidioc_querystd		    = pvr2_querystd,
	.vidioc_log_status		    = pvr2_log_status,
	.vidioc_enum_fmt_vid_cap	    = pvr2_enum_fmt_vid_cap,
	.vidioc_g_fmt_vid_cap		    = pvr2_g_fmt_vid_cap,
	.vidioc_s_fmt_vid_cap		    = pvr2_s_fmt_vid_cap,
	.vidioc_try_fmt_vid_cap		    = pvr2_try_fmt_vid_cap,
	.vidioc_streamon		    = pvr2_streamon,
	.vidioc_streamoff		    = pvr2_streamoff,
	.vidioc_queryctrl		    = pvr2_queryctrl,
	.vidioc_querymenu		    = pvr2_querymenu,
	.vidioc_g_ctrl			    = pvr2_g_ctrl,
	.vidioc_s_ctrl			    = pvr2_s_ctrl,
	.vidioc_g_ext_ctrls		    = pvr2_g_ext_ctrls,
	.vidioc_s_ext_ctrls		    = pvr2_s_ext_ctrls,
	.vidioc_try_ext_ctrls		    = pvr2_try_ext_ctrls,
};



static void pvr2_v4l2_dev_destroy(struct pvr2_v4l2_dev *dip)
{
	struct pvr2_hdw *hdw = dip->v4lp->channel.mc_head->hdw;
	enum pvr2_config cfg = dip->config;
	char msg[80];
	unsigned int mcnt;

	/* Construct the unregistration message *before* we actually
           perform the unregistration step.  By doing it this way we don't
           have to worry about potentially touching deleted resources. */
	mcnt = scnprintf(msg, sizeof(msg) - 1,
			 "pvrusb2: unregistered device %s [%s]",
			 video_device_node_name(&dip->devbase),
			 pvr2_config_get_name(cfg));
	msg[mcnt] = 0;

	pvr2_hdw_v4l_store_minor_number(hdw,dip->minor_type,-1);

	/* Paranoia */
	dip->v4lp = NULL;
	dip->stream = NULL;

	/* Actual deallocation happens later when all internal references
           are gone. */
	video_unregister_device(&dip->devbase);

	printk(KERN_INFO "%s\n", msg);

}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
121
98.37%
5
83.33%
Randy Dunlap
2
1.63%
1
16.67%
Total
123
100.00%
6
100.00%



static void pvr2_v4l2_dev_disassociate_parent(struct pvr2_v4l2_dev *dip)
{
	if (!dip) return;
	if (!dip->devbase.v4l2_dev->dev) return;
	dip->devbase.v4l2_dev->dev = NULL;
	device_move(&dip->devbase.dev, NULL, DPM_ORDER_NONE);
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
47
88.68%
1
50.00%
Hans Verkuil
6
11.32%
1
50.00%
Total
53
100.00%
2
100.00%



static void pvr2_v4l2_destroy_no_lock(struct pvr2_v4l2 *vp)
{
	if (vp->dev_video) {
		pvr2_v4l2_dev_destroy(vp->dev_video);
		vp->dev_video = NULL;
	}
	if (vp->dev_radio) {
		pvr2_v4l2_dev_destroy(vp->dev_radio);
		vp->dev_radio = NULL;
	}

	pvr2_trace(PVR2_TRACE_STRUCT,"Destroying pvr2_v4l2 id=%p",vp);
	pvr2_channel_done(&vp->channel);
	kfree(vp);
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
70
93.33%
3
60.00%
Pantelis Koukousoulas
3
4.00%
1
20.00%
Al Viro
2
2.67%
1
20.00%
Total
75
100.00%
5
100.00%



static void pvr2_video_device_release(struct video_device *vdev)
{
	struct pvr2_v4l2_dev *dev;
	dev = container_of(vdev,struct pvr2_v4l2_dev,devbase);
	kfree(dev);
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
33
100.00%
1
100.00%
Total
33
100.00%
1
100.00%



static void pvr2_v4l2_internal_check(struct pvr2_channel *chp)
{
	struct pvr2_v4l2 *vp;
	vp = container_of(chp,struct pvr2_v4l2,channel);
	if (!vp->channel.mc_head->disconnect_flag) return;
	pvr2_v4l2_dev_disassociate_parent(vp->dev_video);
	pvr2_v4l2_dev_disassociate_parent(vp->dev_radio);
	if (!list_empty(&vp->dev_video->devbase.fh_list) ||
	    !list_empty(&vp->dev_radio->devbase.fh_list))
		return;
	pvr2_v4l2_destroy_no_lock(vp);
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
64
72.73%
2
50.00%
Hans Verkuil
23
26.14%
1
25.00%
Adrian Bunk
1
1.14%
1
25.00%
Total
88
100.00%
4
100.00%



static long pvr2_v4l2_ioctl(struct file *file,
			   unsigned int cmd, unsigned long arg)
{

	struct pvr2_v4l2_fh *fh = file->private_data;
	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
	long ret = -EINVAL;

	if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL)
		v4l_printk_ioctl(pvr2_hdw_get_driver_name(hdw), cmd);

	if (!pvr2_hdw_dev_ok(hdw)) {
		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
			   "ioctl failed - bad or no context");
		return -EFAULT;
	}

	ret = video_ioctl2(file, cmd, arg);

	pvr2_hdw_commit_ctl(hdw);

	if (ret < 0) {
		if (pvrusb2_debug & PVR2_TRACE_V4LIOCTL) {
			pvr2_trace(PVR2_TRACE_V4LIOCTL,
				   "pvr2_v4l2_do_ioctl failure, ret=%ld command was:",
ret);
			v4l_printk_ioctl(pvr2_hdw_get_driver_name(hdw), cmd);
		}
	} else {
		pvr2_trace(PVR2_TRACE_V4LIOCTL,
			   "pvr2_v4l2_do_ioctl complete, ret=%ld (0x%lx)",
			   ret, ret);
	}
	return ret;

}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Hans Verkuil
124
81.58%
3
50.00%
Mike Isely
26
17.11%
1
16.67%
Adrian Bunk
1
0.66%
1
16.67%
Mauro Carvalho Chehab
1
0.66%
1
16.67%
Total
152
100.00%
6
100.00%



static int pvr2_v4l2_release(struct file *file)
{
	struct pvr2_v4l2_fh *fhp = file->private_data;
	struct pvr2_v4l2 *vp = fhp->pdi->v4lp;
	struct pvr2_hdw *hdw = fhp->channel.mc_head->hdw;

	pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_release");

	if (fhp->rhp) {
		struct pvr2_stream *sp;
		pvr2_hdw_set_streaming(hdw,0);
		sp = pvr2_ioread_get_stream(fhp->rhp);
		if (sp) pvr2_stream_set_callback(sp,NULL,NULL);
		pvr2_ioread_destroy(fhp->rhp);
		fhp->rhp = NULL;
	}

	v4l2_fh_del(&fhp->fh);
	v4l2_fh_exit(&fhp->fh);
	file->private_data = NULL;

	pvr2_channel_done(&fhp->channel);
	pvr2_trace(PVR2_TRACE_STRUCT,
		   "Destroying pvr_v4l2_fh id=%p",fhp);
	if (fhp->input_map) {
		kfree(fhp->input_map);
		fhp->input_map = NULL;
	}
	kfree(fhp);
	if (vp->channel.mc_head->disconnect_flag &&
	    list_empty(&vp->dev_video->devbase.fh_list) &&
	    list_empty(&vp->dev_radio->devbase.fh_list)) {
		pvr2_v4l2_destroy_no_lock(vp);
	}
	return 0;
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
181
84.19%
4
66.67%
Hans Verkuil
33
15.35%
1
16.67%
Adrian Bunk
1
0.47%
1
16.67%
Total
215
100.00%
6
100.00%



static int pvr2_v4l2_open(struct file *file)
{
	struct pvr2_v4l2_dev *dip; /* Our own context pointer */
	struct pvr2_v4l2_fh *fhp;
	struct pvr2_v4l2 *vp;
	struct pvr2_hdw *hdw;
	unsigned int input_mask = 0;
	unsigned int input_cnt,idx;
	int ret = 0;

	dip = container_of(video_devdata(file),struct pvr2_v4l2_dev,devbase);

	vp = dip->v4lp;
	hdw = vp->channel.hdw;

	pvr2_trace(PVR2_TRACE_OPEN_CLOSE,"pvr2_v4l2_open");

	if (!pvr2_hdw_dev_ok(hdw)) {
		pvr2_trace(PVR2_TRACE_OPEN_CLOSE,
			   "pvr2_v4l2_open: hardware not ready");
		return -EIO;
	}

	fhp = kzalloc(sizeof(*fhp),GFP_KERNEL);
	if (!fhp) {
		return -ENOMEM;
	}

	v4l2_fh_init(&fhp->fh, &dip->devbase);
	init_waitqueue_head(&fhp->wait_data);
	fhp->pdi = dip;

	pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr_v4l2_fh id=%p",fhp);
	pvr2_channel_init(&fhp->channel,vp->channel.mc_head);

	if (dip->v4l_type == VFL_TYPE_RADIO) {
		/* Opening device as a radio, legal input selection subset
                   is just the radio. */
		input_mask = (1 << PVR2_CVAL_INPUT_RADIO);
	} else {
		/* Opening the main V4L device, legal input selection
                   subset includes all analog inputs. */
		input_mask = ((1 << PVR2_CVAL_INPUT_RADIO) |
			      (1 << PVR2_CVAL_INPUT_TV) |
			      (1 << PVR2_CVAL_INPUT_COMPOSITE) |
			      (1 << PVR2_CVAL_INPUT_SVIDEO));
	}
	ret = pvr2_channel_limit_inputs(&fhp->channel,input_mask);
	if (ret) {
		pvr2_channel_done(&fhp->channel);
		pvr2_trace(PVR2_TRACE_STRUCT,
			   "Destroying pvr_v4l2_fh id=%p (input mask error)",
			   fhp);
		v4l2_fh_exit(&fhp->fh);
		kfree(fhp);
		return ret;
	}

	input_mask &= pvr2_hdw_get_input_available(hdw);
	input_cnt = 0;
	for (idx = 0; idx < (sizeof(input_mask) << 3); idx++) {
		if (input_mask & (1 << idx)) input_cnt++;
	}
	fhp->input_cnt = input_cnt;
	fhp->input_map = kzalloc(input_cnt,GFP_KERNEL);
	if (!fhp->input_map) {
		pvr2_channel_done(&fhp->channel);
		pvr2_trace(PVR2_TRACE_STRUCT,
			   "Destroying pvr_v4l2_fh id=%p (input map failure)",
			   fhp);
		v4l2_fh_exit(&fhp->fh);
		kfree(fhp);
		return -ENOMEM;
	}
	input_cnt = 0;
	for (idx = 0; idx < (sizeof(input_mask) << 3); idx++) {
		if (!(input_mask & (1 << idx))) continue;
		fhp->input_map[input_cnt++] = idx;
	}

	fhp->file = file;
	file->private_data = fhp;

	fhp->fw_mode_flag = pvr2_hdw_cpufw_get_enabled(hdw);
	v4l2_fh_add(&fhp->fh);

	return 0;
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
431
91.70%
5
55.56%
Hans Verkuil
21
4.47%
1
11.11%
Santosh Kumar Singh
16
3.40%
1
11.11%
Adrian Bunk
1
0.21%
1
11.11%
Joe Perches
1
0.21%
1
11.11%
Total
470
100.00%
9
100.00%



static void pvr2_v4l2_notify(struct pvr2_v4l2_fh *fhp)
{
	wake_up(&fhp->wait_data);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
19
100.00%
1
100.00%
Total
19
100.00%
1
100.00%



static int pvr2_v4l2_iosetup(struct pvr2_v4l2_fh *fh)
{
	int ret;
	struct pvr2_stream *sp;
	struct pvr2_hdw *hdw;
	if (fh->rhp) return 0;

	if (!fh->pdi->stream) {
		/* No stream defined for this node.  This means that we're
                   not currently allowed to stream from this node. */
		return -EPERM;
	}

	/* First read() attempt.  Try to claim the stream and start
           it... */
	if ((ret = pvr2_channel_claim_stream(&fh->channel,
					     fh->pdi->stream)) != 0) {
		/* Someone else must already have it */
		return ret;
	}

	fh->rhp = pvr2_channel_create_mpeg_stream(fh->pdi->stream);
	if (!fh->rhp) {
		pvr2_channel_claim_stream(&fh->channel,NULL);
		return -ENOMEM;
	}

	hdw = fh->channel.mc_head->hdw;
	sp = fh->pdi->stream->stream;
	pvr2_stream_set_callback(sp,(pvr2_stream_callback)pvr2_v4l2_notify,fh);
	pvr2_hdw_set_stream_type(hdw,fh->pdi->config);
	if ((ret = pvr2_hdw_set_streaming(hdw,!0)) < 0) return ret;
	return pvr2_ioread_set_enabled(fh->rhp,!0);
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
182
97.33%
4
80.00%
Joe Perches
5
2.67%
1
20.00%
Total
187
100.00%
5
100.00%



static ssize_t pvr2_v4l2_read(struct file *file,
			      char __user *buff, size_t count, loff_t *ppos)
{
	struct pvr2_v4l2_fh *fh = file->private_data;
	int ret;

	if (fh->fw_mode_flag) {
		struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
		char *tbuf;
		int c1,c2;
		int tcnt = 0;
		unsigned int offs = *ppos;

		tbuf = kmalloc(PAGE_SIZE,GFP_KERNEL);
		if (!tbuf) return -ENOMEM;

		while (count) {
			c1 = count;
			if (c1 > PAGE_SIZE) c1 = PAGE_SIZE;
			c2 = pvr2_hdw_cpufw_get(hdw,offs,tbuf,c1);
			if (c2 < 0) {
				tcnt = c2;
				break;
			}
			if (!c2) break;
			if (copy_to_user(buff,tbuf,c2)) {
				tcnt = -EFAULT;
				break;
			}
			offs += c2;
			tcnt += c2;
			buff += c2;
			count -= c2;
			*ppos += c2;
		}
		kfree(tbuf);
		return tcnt;
	}

	if (!fh->rhp) {
		ret = pvr2_v4l2_iosetup(fh);
		if (ret) {
			return ret;
		}
	}

	for (;;) {
		ret = pvr2_ioread_read(fh->rhp,buff,count);
		if (ret >= 0) break;
		if (ret != -EAGAIN) break;
		if (file->f_flags & O_NONBLOCK) break;
		/* Doing blocking I/O.  Wait here. */
		ret = wait_event_interruptible(
			fh->wait_data,
			pvr2_ioread_avail(fh->rhp) >= 0);
		if (ret < 0) break;
	}

	return ret;
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
293
100.00%
1
100.00%
Total
293
100.00%
1
100.00%



static unsigned int pvr2_v4l2_poll(struct file *file, poll_table *wait)
{
	unsigned int mask = 0;
	struct pvr2_v4l2_fh *fh = file->private_data;
	int ret;

	if (fh->fw_mode_flag) {
		mask |= POLLIN | POLLRDNORM;
		return mask;
	}

	if (!fh->rhp) {
		ret = pvr2_v4l2_iosetup(fh);
		if (ret) return POLLERR;
	}

	poll_wait(file,&fh->wait_data,wait);

	if (pvr2_ioread_avail(fh->rhp) >= 0) {
		mask |= POLLIN | POLLRDNORM;
	}

	return mask;
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
108
100.00%
1
100.00%
Total
108
100.00%
1
100.00%


static const struct v4l2_file_operations vdev_fops = {
	.owner      = THIS_MODULE,
	.open       = pvr2_v4l2_open,
	.release    = pvr2_v4l2_release,
	.read       = pvr2_v4l2_read,
	.unlocked_ioctl = pvr2_v4l2_ioctl,
	.poll       = pvr2_v4l2_poll,
};



static struct video_device vdev_template = {
	.fops       = &vdev_fops,
};




static void pvr2_v4l2_dev_init(struct pvr2_v4l2_dev *dip,
			       struct pvr2_v4l2 *vp,
			       int v4l_type)
{
	int mindevnum;
	int unit_number;
	struct pvr2_hdw *hdw;
	int *nr_ptr = NULL;
	dip->v4lp = vp;

	hdw = vp->channel.mc_head->hdw;
	dip->v4l_type = v4l_type;
	switch (v4l_type) {
	case VFL_TYPE_GRABBER:
		dip->stream = &vp->channel.mc_head->video_stream;
		dip->config = pvr2_config_mpeg;
		dip->minor_type = pvr2_v4l_type_video;
		nr_ptr = video_nr;
		if (!dip->stream) {
			pr_err(KBUILD_MODNAME
				": Failed to set up pvrusb2 v4l video dev due to missing stream instance\n");
			return;
		}
		break;
	case VFL_TYPE_VBI:
		dip->config = pvr2_config_vbi;
		dip->minor_type = pvr2_v4l_type_vbi;
		nr_ptr = vbi_nr;
		break;
	case VFL_TYPE_RADIO:
		dip->stream = &vp->channel.mc_head->video_stream;
		dip->config = pvr2_config_mpeg;
		dip->minor_type = pvr2_v4l_type_radio;
		nr_ptr = radio_nr;
		break;
	default:
		/* Bail out (this should be impossible) */
		pr_err(KBUILD_MODNAME ": Failed to set up pvrusb2 v4l dev due to unrecognized config\n");
		return;
	}

	dip->devbase = vdev_template;
	dip->devbase.release = pvr2_video_device_release;
	dip->devbase.ioctl_ops = &pvr2_ioctl_ops;
	{
		int val;
		pvr2_ctrl_get_value(
			pvr2_hdw_get_ctrl_by_id(hdw,
						PVR2_CID_STDAVAIL), &val);
		dip->devbase.tvnorms = (v4l2_std_id)val;
	}

	mindevnum = -1;
	unit_number = pvr2_hdw_get_unit_number(hdw);
	if (nr_ptr && (unit_number >= 0) && (unit_number < PVR_NUM)) {
		mindevnum = nr_ptr[unit_number];
	}
	pvr2_hdw_set_v4l2_dev(hdw, &dip->devbase);
	if ((video_register_device(&dip->devbase,
				   dip->v4l_type, mindevnum) < 0) &&
	    (video_register_device(&dip->devbase,
				   dip->v4l_type, -1) < 0)) {
		pr_err(KBUILD_MODNAME
			": Failed to register pvrusb2 v4l device\n");
	}

	printk(KERN_INFO "pvrusb2: registered device %s [%s]\n",
	       video_device_node_name(&dip->devbase),
	       pvr2_config_get_name(dip->config));

	pvr2_hdw_v4l_store_minor_number(hdw,
					dip->minor_type,dip->devbase.minor);
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
302
84.59%
9
50.00%
Hans Verkuil
22
6.16%
2
11.11%
Pantelis Koukousoulas
18
5.04%
2
11.11%
Mauro Carvalho Chehab
9
2.52%
2
11.11%
Laurent Pinchart
4
1.12%
1
5.56%
Al Viro
1
0.28%
1
5.56%
Ezequiel García
1
0.28%
1
5.56%
Total
357
100.00%
18
100.00%



struct pvr2_v4l2 *pvr2_v4l2_create(struct pvr2_context *mnp)
{
	struct pvr2_v4l2 *vp;

	vp = kzalloc(sizeof(*vp),GFP_KERNEL);
	if (!vp) return vp;
	pvr2_channel_init(&vp->channel,mnp);
	pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr2_v4l2 id=%p",vp);

	vp->channel.check_func = pvr2_v4l2_internal_check;

	/* register streams */
	vp->dev_video = kzalloc(sizeof(*vp->dev_video),GFP_KERNEL);
	if (!vp->dev_video) goto fail;
	pvr2_v4l2_dev_init(vp->dev_video,vp,VFL_TYPE_GRABBER);
	if (pvr2_hdw_get_input_available(vp->channel.mc_head->hdw) &
	    (1 << PVR2_CVAL_INPUT_RADIO)) {
		vp->dev_radio = kzalloc(sizeof(*vp->dev_radio),GFP_KERNEL);
		if (!vp->dev_radio) goto fail;
		pvr2_v4l2_dev_init(vp->dev_radio,vp,VFL_TYPE_RADIO);
	}

	return vp;
 fail:
	pvr2_trace(PVR2_TRACE_STRUCT,"Failure creating pvr2_v4l2 id=%p",vp);
	pvr2_v4l2_destroy_no_lock(vp);
	return NULL;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
178
96.22%
6
75.00%
Pantelis Koukousoulas
6
3.24%
1
12.50%
Harvey Harrison
1
0.54%
1
12.50%
Total
185
100.00%
8
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Mike Isely
4561
68.75%
37
48.68%
Hans Verkuil
1823
27.48%
15
19.74%
Pantelis Koukousoulas
121
1.82%
4
5.26%
Ricardo Ribalda Delgado
54
0.81%
1
1.32%
Mauro Carvalho Chehab
23
0.35%
6
7.89%
Santosh Kumar Singh
16
0.24%
1
1.32%
Joe Perches
10
0.15%
1
1.32%
Adrian Bunk
6
0.09%
1
1.32%
Laurent Pinchart
4
0.06%
1
1.32%
Al Viro
3
0.05%
1
1.32%
Tejun Heo
3
0.05%
1
1.32%
Paul Gortmaker
3
0.05%
1
1.32%
Randy Dunlap
2
0.03%
1
1.32%
Michael Ira Krufky
1
0.02%
1
1.32%
Ezequiel García
1
0.02%
1
1.32%
Arjan van de Ven
1
0.02%
1
1.32%
Sakari Ailus
1
0.02%
1
1.32%
Harvey Harrison
1
0.02%
1
1.32%
Total
6634
100.00%
76
100.00%
Directory: drivers/media/usb/pvrusb2

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.